Finding the Fourth Proportional to 3,840.76, 5,300.93 and 3,665.45

Step by Step Solution

1. Step 1: Write the proportion equation
   3,840.76 : 5,300.93 = 3,665.45 : x
2. Step 2: Convert to fraction form
   3,840.76/5,300.93 = 3,665.45/x
3. Step 3: Cross multiply
   3,840.76x = 5,300.93 × 3,665.45
4. Step 4: Simplify right side
   3,840.76x = 19,430,288.79
5. Step 5: Solve for x
   x = 19,430,288.79/3,840.76
6. Step 6: Final answer
   x = 5,058.97